Tambour-frame-moving mechanism for embroidering-machines.



G. HUBNER.

TAMBOUR FRAME MOVING MECHANISM FOR EMBROIDERING MACHINES.

APPLICATION FILED MAR. 26, I912.

Patented Sept. 21, 1915.

3 SHEETS-SHEET 1:

Ill m G. HUBNER.

TAMBOUR FRAME MOVING MECHANISM FOR EMBROIDERING MACHINES APPLICATIONflLED MAR. 26,1912.

1 L54,397. Patented Sept. 21,1915

3 SHEET$-SHEET 2.

uan; 71127.

2%(131 ass as;

e. HIJBNER. TAMBOUR FRAME MOYING MECHANISM FOR EMBROIDERING MACHINES.

APPLICATION FILED MAR. 26, I9I2.

Patented Sept. 21, 1915 3 SHEETSSHEET 3- 61 0. Jnwc.

barn e rag ye i-Fi qosre v Etienne, or maven. GERMANY.

TAMBOUR-BBAME-MOVING MECHANISM roa nMBnoInnniNe-i/iscnmns.

Application filed March 26,1912. Serial No. 686,26$.

To all whom it may concern Be it known that I, GUSTAV HtiBNER, a subjectof the King of Saxony, residing at Plauen, Vogtland, Saxony, Germany,have tion by a shiftahle bar.

invented certain new and useful Improvements in Tambour-Frame-MovingMechanism for Embroidering Machines, of which the following is aspecification, reference being had therein to the accompanying drawing.

The present mvention relates to means for automatically adjusting thetambour frames for embroidering machines, in which needle bearing leversadjusted from the jacquard card and lifted by grades, act on leverswhich can be oscillated to and fro, and adjusted in height for theindirect displacement of the embroidering frame.

In order to prevent inaccuracies in the lifting action of the needlebearing levers, to cause displacement of the tambour frames, these wereformerly secured'by intricate mechanism which can now be dispensed with,because the present invention provides double armed bearing levershaving the same center of motion, mounted on In the drawings Figure he avertical "sec tion of the machine. Fig. 1? is an enlarged view of thelevers on the "shaft 14. :Fig. '2' is a view similar to Fig. 1, showingthe parts in adifierent relation. Fig. 3 is illustrative of the drivingmechanism in plan view. Fig.

4 shows the frame-like standard in a special position for the needlecarrying le- Specification of Letters Patent.

Patented se t. 21, rare;

vers and Figs. 5, 6 and device. v

The shaft 2 ets its propulsionfrom the shaft 1, provi ed With a pulleyby means of chain wheels 3 and 4, or 5 and 6, and the 7, show details-ofthe chains belonging thereto Keys are for connecting the gears 3 and .5,to the shaft 1, which gearsare adapted to'be discon-' nected from thekeys 55.

The shaft 2 has a cam 7, fittedthereon for moving the frame 9 whichsupports the needle levers 10, and, in addition, has a earn .8,foroperating lever 24; which engages" hook 22 on bar 11, and, atthe end,a disk 12, imparting intermittently, partial rota tlons to theoscillating levers 17,,by means of a rod 13, such levers being operatedupon,

in the upper part of the machine, by the shaft 14, adj ustable in heightand supported on bent extensions 16 of the intermediate levers 15. Thehook levers .30, which are operated by pushers 29,"push.up thefingers 15which lift the member 15.- a

I On the-shaft 18, of the framei'needl'e levers 10 are looselyoscillatable, and when f in operative position, as shown in Figlil, theyrest on the front ledgeof the frame 9, -so' that their extremities,providedv with knobs 19, may engage-the recess 20,:of the;

bar 11', the latter having a lateral'guide member 21, guided by a roll27, and adjust able on the frame a ,The guide member 21 hasa1laterall1ook22, engaging axslot 23,

of a tappet lever 24, the arm 25, whereof is kept adjacent to the disk 8by a 'springf26, actuating'the guide members 21, infone direction. Theframe 9, has 'pivotall'yfsecured thereto, a slide bar, the roll 28 ofwhich engages the groove 12, of thecam'Z. The armed, intermediate levers-15,"have their support on the cross-ledge 31'. "The purpose ofpivotally mounting the fingers 15$} on the levers 15, is to permit theswinging of fingers 15 on lever-s15, while thefingersiare I operatingthe levers;

Each separate adjusting .memberBQ, is

guided by four rollers 33,,andsupplied, iri-,

tjermediate its ends with-two adjacent pin n g l a r notches of eachpalr-slanting in opposite d1- :h'eads 34,.and two' adjacent pin heads 34shown. in detail in Figs. and 6,. and which are taperedi in oppositedirections and are pressed away from the adjusting arm by 1 means ofsprings. With these pin heads the before mentioned Oscillating members17,

' cooperate.

Each lever 17 is provided onlits and lower ends and on the sidefacingthe pin heads with pairs of notches 17, 17, the

rections and with vwhichfnotches 17 17 the pin heads 34, 34 cooperate.This con str'uction permits the lever 17,- according to its verticalposition, to reciprocate the mem-' ber 22. i

On theaxle 35, of the upper part of the frame, levers 36 are mounted,corresponding in number to the number of the adjusting. members 32.These are engaged on the one hand by means of slotted ends, with theLbolts 37 of the adjusting members 32, and are connected on the otherhand with an adjusting mechanism for the tambour frame ofthe-embroidering machine, fitted in the known manner with slide plates39, and sliding pieces 40.

The device for rapidand slow speed gear,

- comprises a rod 44, fitted with two rock arms 41 and 42, and rotatablein bearing 43 and 43* said rod 44 being articularly 'connected with oneof the adjusting arms by means of rock arm 41, while rock arm 42 joinssaid rod at its lower end with a slide bar 45. By means of slottedprojections '46 and47, as shown in Fig. 3, the slidehas a of rod 44.

- speed gear (5, 6,) is thrown in and the chain displacing'acti'on onthe'chain wheel 3 or 5, accordmg to the d' ection of oscillationAccording to Fig. 3, the drive forslow wheel 3, is thrown out of gear. vThe operation of the device is as follows :-The' adjustment of theneedle levers"10, efi'ected by the oscillation of the frame 9, isretained-by the movement of the recessedbar 11, in the'directionof thearrow 1, as in- Figs. 4 and 1, by causing the lowered needle levers toenter the recess 20 ,of the part 11, and-"the r'aisedl needle leverv 10to abut the chamfering-48, where they are secured with thei'r kno' b l9,by a rib 49, of

cam '7 impartsan' oscillation to theframe 9, thelpushersf 29,"of thelifted needle-leverslO,'raiseup"the intermediate levers 15, andtherewith? also the oscillating levers 17 which immediately afterwardare turned by the'pitman 13, into the position as'shown in Fig.' 2:- onmoving however back-into their initial position, they drawback again theadjusting arms 32 which 'mig'ht have beendisplaced: "A needle lever 10,which is not lifted but' has fallen into an opening,

of the pattern card has no raising effect jlevers 10 are released fromthelbar 11, by

operation of cam 8 on lever 24,which engages hook 22, on bar 11,and,'owing to the needle levers own weight they fall back again intotheir initial position, as in Fig:'-; 4.-

Immediately afterward the cam 7 operates by means of the frame 9 theneedles of the levers 10 onto the pattern card sothat theneedle levers10, may be adjusted anew and secured by the bar 11, in their action,whereby they are made to operate on the inter mediate levers 15 and theadjusting members 32. I

What I claim and desire to secure, is

1. In a device. of the character described, a frame, needle leversmounted on said frame, means to intermittently vibrate said levers, atransverse bar having a recess, said levers adapted to engage" saidrecess and be.

retained in the adjustment effected by the pattern card; adjusting armsadapted to op-' crate the embroidery frame and onearmed levers adapted"to communicate movement from said needle levers to said adjusting 2. Ina device of the character described, a frame, a driving shaft journaledon said frame, a driven shaft, speed controlling means connected withsaid driving shaft and said driven shaft, a vertical bar, a cam on'said'driven shaft longitudinally reciprocating said vertical bar, a rockingneedle lever actuated by said vertical bar, guide rollers, ahorizontally movableframe mounted on'said guide'rollers, means by whichsaid rocking needle lever controls the reciprocations of said movableframe, including a vertically 'adjustableand oscillatory bar con nectedto said movable frame and means connecting said-movable frame with thetambour frame.

3. In a device of the character described, a driving shaft a drivenshaft, adjustable sprocket wheels on one of saidshafts, means to connectand disconnect said adjustable wheels withsaid shaft, cams on saiddriven shaft a-rodsuitablyjournaled at its lower end and having a slotin its upper end and an inclined rigid projection, spring-held againstone of said cams, a recessed transverse bar, lifting needle'levers,pushers on said needle levers, hook-levers actuated by said pushers,horizontal leversiil5, rock arms 15. pivoted on said horizontal leversand waeea Y I engaged by said hook levers, an oscillating In testimonywhereof Iafiix my signatnre bar 17 said levers 15 operating to control111 the presence of two Witnesses.

the vertical position of the oscillating bar 17, a rod actuating thetanibour frame and GUSTAV HUBNER' 5 means operatively connecting saidoscillat- I Witnesses:

ing bar with said rod for actuating the tam- F. HENHAM,

bour frame, as herein set forth. CHARLES NEUER.

